Home / 564,075.22-778,423.96-309,426.41

Finding the Fourth Proportional to 564,075.22, 778,423.96 and 309,426.41

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Solution

The fourth proportional to 564,075.22, 778,423.96 and 309,426.41 is: 427,008.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,075.22 : 778,423.96 = 309,426.41 : x
  2. Step 2: Convert to fraction form
    564,075.22/778,423.96 = 309,426.41/x
  3. Step 3: Cross multiply
    564,075.22x = 778,423.96 × 309,426.41
  4. Step 4: Simplify right side
    564,075.22x = 240,864,931,400.78
  5. Step 5: Solve for x
    x = 240,864,931,400.78/564,075.22
  6. Step 6: Final answer
    x = 427,008.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.